It is a rare treat to turn over the pages of the lens upon the carbons of the light to be photographed, and then giving either a preliminary or subsequent October issue of the building edition. This number exposure of the carbons, when the arc was not in is filled with exquisite illustrations of… … photographing that the tendency of ral Address to the British Associa- the alternating arc to wander was tion by Prof. Arthur W. Riicker is THE OKAPI—A NEWLY DISCOVERED ANIMAL. much greater than that of the con- continued. "Pig-Iron Casting Ma- tinuous-current arc. The results thus shown in Figs.…
Arc · Coal · Bituminous · Motor · Apparatus · Bituminous coal · Scientific American · German lloyd · Building edition · Horse power · Submerged electric · Soft coal · North german · Three years · Electric motor
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